title Test model H and He atoms in Case B limit
c grid over nebular range of density and temperature to check Case B H & He
c
c commands controlling continuum =========
c create H+ and He+
laser 2 Ryd
ionization parameter -2
c
c commands for density & abundances =========
init "hheonly.ini"
hden 2. vary
grid 2 6 2
c
c commands controlling geometry  =========
stop zone 1
c
c other commands for details     =========
set line precision 5
atom he-like element helium resolved levels 10
no scattering escape
case b hummer no Pdest no photoionization
constant temperature 4. vary
grid 5000K to 20000K step 5000K linear
c
c commands controlling output    =========
atom H-like print levels
save overview "limit_caseb_hhe_den_temp.ovr"
save performance "limit_caseb_hhe_den_temp.per"
save monitors "limit_caseb_hhe_den_temp.asr"
c 
c commands giving the monitors    =========
monitor Case B H-like  Hydrogen error 0.10 range 1000A to 40000A
c Case B helium doesn't work well with Hummer option
c monitor Case B He-like Helium   error 0.10 range 1000A to 15000A faint -2.2
c 
c limit_caseb_hhe_den_temp.in 
c class limit 
c ========================================
c 

this tests the predicted H I and He I spectra in the Case B limit.
The grid is over both density and temperature.